Tech It Out: Depression, a serious disease affecting millions worldwide

In this edition of Tech It Out, CGTN looks at depression, a serious disease affecting millions worldwide. Scientists in Zhejiang University in Hangzhou, east China say they have unlocked the secret of depression with the help of ketamine.

On Science Saturday, CGTN reviews the major science news of the past two weeks – including the discovery of 59 well-preserved ancient coffins in Egypt, China officially joining the global vaccine initiative COVAX, climate change doubling natural disasters around the world in two decades, and the scene of a star being ripped into shreds by a black hole 215 million light years away from the Earth.